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Simplifying 7x + -6 = 21 + 2x Reorder the terms: -6 + 7x = 21 + 2x Solving -6 + 7x = 21 + 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. -6 + 7x + -2x = 21 + 2x + -2x Combine like terms: 7x + -2x = 5x -6 + 5x = 21 + 2x + -2x Combine like terms: 2x + -2x = 0 -6 + 5x = 21 + 0 -6 + 5x = 21 Add '6' to each side of the equation. -6 + 6 + 5x = 21 + 6 Combine like terms: -6 + 6 = 0 0 + 5x = 21 + 6 5x = 21 + 6 Combine like terms: 21 + 6 = 27 5x = 27 Divide each side by '5'. x = 5.4 Simplifying x = 5.4
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